121511412064004 has 48 divisors (see below), whose sum is σ = 237364872208128. Its totient is φ = 54131800977408.

The previous prime is 121511412063961. The next prime is 121511412064033. The reversal of 121511412064004 is 400460214115121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400326224 + ... + 400629639.

It is an arithmetic number, because the mean of its divisors is an integer number (4945101504336).

Almost surely, 2^{121511412064004} is an apocalyptic number.

It is an amenable number.

121511412064004 is a deficient number, since it is larger than the sum of its proper divisors (115853460144124).

121511412064004 is a wasteful number, since it uses less digits than its factorization.

121511412064004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800956004 (or 800956002 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

Adding to 121511412064004 its reverse (400460214115121), we get a palindrome (521971626179125).

The spelling of 121511412064004 in words is "one hundred twenty-one trillion, five hundred eleven billion, four hundred twelve million, sixty-four thousand, four".